Within the context of a six-quark model combined with quantum chromodynamics we study the asymmetry in the decay of heavy charged mesons into a definite final state as compared with the charge-conjugated mode. We find that, in decays of mesons involving the $b$ quark, measurable asymmetries may arise. This would present the first evidence for $\mathrm{CP}$ noninvariance in charged systems.

• Received 9 May 1979

DOI:https://doi.org/10.1103/PhysRevLett.43.242